condition	mean	min	max
4 h after light	9.525375	9.17129	9.87946
8 h after light	20.22005	19.5324	20.9077
12 h after light	24.89895	22.5557	27.2422
4 h after dark	7.60508	6.33939	8.61885
8 h after dark	6.8386233333333335	6.07	7.88846
12 h after dark	7.447433333333333	6.46837	8.25875